Bank segment (HEI only) Credit Risk Profile Based on Payment Activity for Loans (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Credit risk profile based on payment activity for loans
30-59 days past due	$ 8,993	$ 5,781
60-89 days past due	2,711	1,752
Greater than 90 days	13,798	26,227
Total past due	25,502	33,760
Current	4,415,487	4,125,193
Total financing receivables	4,440,989us-gaap_NotesReceivableNet	4,158,953us-gaap_NotesReceivableNet
Recorded Investment greater than 90 days and accruing	0	0
Residential 1-4 family
Credit risk profile based on payment activity for loans
30-59 days past due	6,124	2,728
60-89 days past due	1,732	622
Greater than 90 days	12,632	15,411
Total past due	20,488	18,761
Current	2,023,717	1,987,246
Total financing receivables	2,044,205	2,006,007
Recorded Investment greater than 90 days and accruing	0	0
Commercial real estate
Credit risk profile based on payment activity for loans
30-59 days past due	0	0
60-89 days past due		0
Greater than 90 days	0	3,770
Total past due	0	3,770
Current	531,917	436,673
Total financing receivables	531,917	440,443
Recorded Investment greater than 90 days and accruing	0	0
Home equity line of credit
Credit risk profile based on payment activity for loans
30-59 days past due	1,341	765
60-89 days past due	501	312
Greater than 90 days	194	960
Total past due	2,036	2,037
Current	816,779	737,294
Total financing receivables	818,815	739,331
Recorded Investment greater than 90 days and accruing	0	0
Residential land
Credit risk profile based on payment activity for loans
30-59 days past due	0	184
60-89 days past due	0	48
Greater than 90 days	0	2,756
Total past due	0	2,988
Current	16,240	13,188
Total financing receivables	16,240	16,176
Recorded Investment greater than 90 days and accruing	0	0
Commercial construction
Credit risk profile based on payment activity for loans
Current	96,438	52,112
Total financing receivables	96,438	52,112
Recorded Investment greater than 90 days and accruing	0	0
Residential construction
Credit risk profile based on payment activity for loans
Current	18,961	12,774
Total financing receivables	18,961	12,774
Recorded Investment greater than 90 days and accruing	0	0
Commercial loans
Credit risk profile based on payment activity for loans
30-59 days past due	699	1,668
60-89 days past due	145	612
Greater than 90 days	569	3,026
Total past due	1,413	5,306
Current	790,344	778,082
Total financing receivables	791,757	783,388
Recorded Investment greater than 90 days and accruing	0	0
Consumer loans
Credit risk profile based on payment activity for loans
30-59 days past due	829	436
60-89 days past due	333	158
Greater than 90 days	403	304
Total past due	1,565	898
Current	121,091	107,824
Total financing receivables	122,656	108,722
Recorded Investment greater than 90 days and accruing	$ 0	$ 0

Financing receivables that are less than 60 days past due but more than 29 days past due.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524

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- Definition

Financing receivables that are less than 90 days past due but more than 59 days past due.

+ References

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

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- Definition

Financing receivables that are current.

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- Definition

Financing receivables that are equal to or greater than 90 days past due.

+ References

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

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- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Article 5

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